Help reading engine codes

[Jonathan Hore]

As far as I am aware there are only two ways to get fault codes:
1 - using the fuse in the top of the fuel pump relay
2 - using the 2/3 connectors in the footwell.

My problem is that I've got a 1986 200 Quattro and,
1 - haven't got any slots in the top of my fuel pump relay
2 - can't see the connectors in the footwell!

Am I just blind or is there something I'm missing?

Jon